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4 years ago

What is the simplified form of 2 over x squared minus x minus 1 over x ? (1 point)

Mathematics

1 answer:

Juliette [100K]4 years ago

7 0

Answer:

−x^3−x+2 / x^2

Step-by -step explanation:

2/x² - x - 1/x

= −x^4−x^2+2x / x^3

= −x^3−x+2 / x^2

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What is the diameter of a hemisphere with the volume of 74466

stepladder [879]

$\textit{volume of a hemisphere}\\\\ V=\cfrac{1}{2}\cdot \cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ V=74466 \end{cases}\implies 74466=\cfrac{1}{2}\cdot \cfrac{4\pi r^3}{3} \\\\\\ 74466=\cfrac{2\pi r^3}{3}\implies 223398=2\pi r^3\implies \cfrac{22398}{2\pi }=r^3\implies \cfrac{111699}{\pi }=r^3 \\\\\\ \sqrt[3]{\cfrac{111699}{\pi }}=r~\hfill \stackrel{\textit{diameter = 2r}}{2\sqrt[3]{\cfrac{111699}{\pi }}\implies \sqrt[3]{\cfrac{893592}{\pi }}}~~ \boxed{\approx~~65.77}$

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3 years ago

Factor completely 169x2 − 64.

Debora [2.8K]

Answer: (13x+8)(13x-8) is the answer

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4 years ago

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If the principal is $200 and the interest rate is 4 percent, what is the simple interest earned in one year?

Gelneren [198K]

A. 4percent of 200 is 8

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3 years ago

At the taco truck an order of 1 taco and 3 quesadillas cost $ 26.50. An order if 3 tacos and 1 quesadilla cost $19.50. for 5 tac

gladu [14]

Answer:

The cost of 1 taco = $4

The cost of 1 quesadilla = $7.50

Step-by-step explanation:

Let the cost of tacos be x and the cost of quesadillas be y.

<h3><u>Given condition:</u></h3>

x + 3y = 26.50 ------------------(1)

3x + y = 19.50 -------------------(2)

Multiply Eq. (2) by 3

3(3x + y) = 19.50 * 3

9x + 3y = 58.5 -----------------(3)

Subtract Eq. (3) from (1)

x + 3y - 9x - 3y = 26.50 - 58.50

x - 9x = -32

-8x = -32

8x = 32

Divide 8 to both sides

x = $4

Put x = 4 in (1)

4 + 3y = 26.50

Subtract 4 to both sides

3y = 26.50 - 4

3y = 22.50

Divide 3 to both sides

y = $7.50

So,

The cost of 1 taco = $4

The cost of 1 quesadilla = $7.50

$\rule[225]{225}{2}$

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2 years ago

A bus gets off the freeway, stops at a rest stop for passengers to get lunch, and then gets back on the freeway.

lozanna [386]

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4 years ago

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